EP1500807A3 - Cold start fuel control system - Google Patents

Cold start fuel control system Download PDF

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Publication number
EP1500807A3
EP1500807A3 EP04017353A EP04017353A EP1500807A3 EP 1500807 A3 EP1500807 A3 EP 1500807A3 EP 04017353 A EP04017353 A EP 04017353A EP 04017353 A EP04017353 A EP 04017353A EP 1500807 A3 EP1500807 A3 EP 1500807A3
Authority
EP
European Patent Office
Prior art keywords
fuel
combustion chamber
cold start
combustion
fuel injector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04017353A
Other languages
German (de)
French (fr)
Other versions
EP1500807A2 (en
Inventor
Jonathan Borg
Shigeru Oho
Frank Warren Hunt
Ayumu Miyajima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of EP1500807A2 publication Critical patent/EP1500807A2/en
Publication of EP1500807A3 publication Critical patent/EP1500807A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/30Controlling fuel injection
    • F02D41/3094Controlling fuel injection the fuel injection being effected by at least two different injectors, e.g. one in the intake manifold and one in the cylinder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/04Introducing corrections for particular operating conditions
    • F02D41/06Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/064Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00Advancing or retarding ignition; Control therefor
    • F02P5/04Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/15Digital data processing
    • F02P5/1502Digital data processing using one central computing unit
    • F02P5/1506Digital data processing using one central computing unit with particular means during starting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D37/00Non-electrical conjoint control of two or more functions of engines, not otherwise provided for
    • F02D37/02Non-electrical conjoint control of two or more functions of engines, not otherwise provided for one of the functions being ignition
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/021Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/024Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
    • F02D41/0255Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus to accelerate the warming-up of the exhaust gas treating apparatus at engine start
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/30Controlling fuel injection
    • F02D41/38Controlling fuel injection of the high pressure type
    • F02D41/40Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • F02D41/402Multiple injections
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems

Abstract

The invention relates to an engine startup fuel control system for use with an internal combustion engine (20) of the type having a plurality of combustion chambers (30), an air intake passage (34) fluidly connected to each combustion chamber (30) and a source of fuel (44). The system includes a multipoint fuel injector (42) associated with each combustion chamber (30) in which the multipoint fuel injector (42) has an inlet connected to the fuel source (44) and an outlet fluidly connected to the intake air passageway (34) adjacent its associated combustion chamber (30). A cold start fuel injector (60) also has an inlet (62) connected to the fuel source (44) and an outlet (64) connected through a cold start passageway (68) with each combustion chamber (30). A processing circuit (48) selectively activates the multipoint fuel injectors (42) as well as the cold start fuel injector (60). The processing circuit (48) determines the air/fuel mixture introduced by the cold start fuel injector (60) into each combustion chamber (30) during engine startup and then selectively activates the multipoint fuel injectors (42) to achieve a predetermined air/fuel mixture in each combustion chamber (30) during engine startup. The processing circuit (48) also variably retards the ignition of the combustion charge within at least one of the combustion chambers (30) to achieve faster heating of a catalytic converter. Furthermore, the cold start fuel injector (60) is optionally activated in a plurality of spaced sub-pulses (112) for each combustion charge provided to each combustion chamber (30).
EP04017353A 2003-07-22 2004-07-22 Cold start fuel control system Withdrawn EP1500807A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US624228 1996-03-29
US10/624,228 US7007667B2 (en) 2003-07-22 2003-07-22 Cold start fuel control system

Publications (2)

Publication Number Publication Date
EP1500807A2 EP1500807A2 (en) 2005-01-26
EP1500807A3 true EP1500807A3 (en) 2006-11-29

Family

ID=33490867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04017353A Withdrawn EP1500807A3 (en) 2003-07-22 2004-07-22 Cold start fuel control system

Country Status (3)

Country Link
US (2) US7007667B2 (en)
EP (1) EP1500807A3 (en)
JP (1) JP2005042723A (en)

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JP4589214B2 (en) * 2005-01-13 2010-12-01 トヨタ自動車株式会社 Start control device for internal combustion engine
JP2006258027A (en) * 2005-03-18 2006-09-28 Toyota Motor Corp Control device of internal combustion engine
JP2006258017A (en) * 2005-03-18 2006-09-28 Toyota Motor Corp Control device of internal combustion engine
EP1881192B1 (en) * 2005-03-18 2016-09-07 Toyota Jidosha Kabushiki Kaisha Internal combustion engine provided with double system of fuel injection
JP4453584B2 (en) * 2005-03-18 2010-04-21 トヨタ自動車株式会社 Control device for internal combustion engine
JP2006258032A (en) * 2005-03-18 2006-09-28 Toyota Motor Corp Vehicle control device
JP4472588B2 (en) * 2005-06-23 2010-06-02 日立オートモティブシステムズ株式会社 Cylinder discrimination device for internal combustion engine
US7185628B1 (en) * 2005-10-31 2007-03-06 General Motors Corporation Continuous engine reverse rotation detection system
WO2008120239A1 (en) * 2007-03-30 2008-10-09 Tata Motors Limited A novel inline two cylinder multi point fuel injection four-stroke reciprocating piston internal combustion spark ignition engine
US7406946B1 (en) 2007-04-02 2008-08-05 Hitachi, Ltd. Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber
US7527038B2 (en) 2007-04-02 2009-05-05 Hitachi, Ltd Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber
US7966869B2 (en) * 2007-07-06 2011-06-28 Hitachi, Ltd. Apparatus and method for detecting cam phase of engine
US9388761B2 (en) 2012-10-24 2016-07-12 Robert Bosch Gmbh Combined fueling strategy for gaseous fuel
JP5776681B2 (en) 2012-12-27 2015-09-09 三菱自動車工業株式会社 engine
US9689333B2 (en) 2014-07-28 2017-06-27 Cummins Inc. Dual-fuel engine with enhanced cold start capability
DE102015015362A1 (en) * 2015-11-28 2017-06-01 Daimler Ag Method for operating an internal combustion engine, in particular a motor vehicle
CN105422301A (en) * 2015-12-12 2016-03-23 湖北汽车工业学院 Electronic fuel injection engine cylinder detection signal simulator and simulating method thereof
JP7331785B2 (en) * 2020-06-09 2023-08-23 トヨタ自動車株式会社 Control device for internal combustion engine

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JP2000008907A (en) * 1998-06-19 2000-01-11 Unisia Jecs Corp Fuel injection control device for internal combustion engine
EP1138901A2 (en) * 2000-03-29 2001-10-04 Hitachi, Ltd. Fuel supply system for internal combustion engine
US20010027776A1 (en) * 2000-03-29 2001-10-11 Kiyoshi Amou Intake air control device and internal combustion engine mounting the same
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Title
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Also Published As

Publication number Publication date
US7017556B2 (en) 2006-03-28
EP1500807A2 (en) 2005-01-26
US7007667B2 (en) 2006-03-07
JP2005042723A (en) 2005-02-17
US20050016503A1 (en) 2005-01-27
US20050016500A1 (en) 2005-01-27

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